15.0553*1023 Zn atoms
By definition of the 'mole' there are ALWAYS 6.02214*1023 particles (of any kind) in ONE mole of that matter. (This BIG number is called the Avogadro number or constant)
So this is true for atoms Zn in 1 mole pure zinc, for H2O molecules in 1 mole water, even for sand particles in 1 mole sand (but there is not so much sand in a desert)
For this problem, the Atomic Mass is not required. Take the mass in moles and multiply it by Avogadro's constant, 6.02 × 1023. Divide by one mole for the units to cancel.
2.95 moles H2 × (6.02 × 1023 atoms) = 1.78 × 1024 atoms
2.50 mole Zn (6.022 X 10^23/1 mole Zn)
= 1.51 X 10^24 atoms in 2.50 moles of zinc
This is 2.50 times Avogadro's number, or 1.51 X 1024 atoms, to the justified number of significant digits.
0,750 moles of zinc contain 4,51660564275.1023 atoms.
1.5 x 10^24
750 L hydrogen gas at 0 0C and 1 at is equal to 33,44 moles.
You have 2.5 moles in 750ml. However molar means per 1000ml. Therefore 2.5/750*1000 gives you your answer. The answer is 3.333 molar.
There are 750 milliliters in .75 liters.
750 dL = 75 L
750 millimeters = 7.5 decimeters
The formula of sulfuric acid is H2SO4, showing that each mole of sulfuric acid contains four mol of oxygen atoms. Therefore 750/4 or 187.5 mol of sulfuric acid will be sufficient.
750 L hydrogen gas at 0 0C and 1 at is equal to 33,44 moles.
.0000787 mol
1.35 mole
Molarity of a solution is the number of moles of the solute divided by the volume of the solution (in liters). If 750 ml of 20M HCl is mixed with 250 ml of 60M HCl, we first find the total number of moles of HCl in our new solution. Using that same formula, M=moles/V, we cansee that moles=MV. In the first solution we have (20M)(0.750L) = 15 moles. In the second, (60M)(0.250L) = 15 moles, so we have a total of 30 moles in our new solution, which also has a volume of 750mL + 250mL = 1L. The molarity of the new solution is 30 moles/1L = 30M
You have 2.5 moles in 750ml. However molar means per 1000ml. Therefore 2.5/750*1000 gives you your answer. The answer is 3.333 molar.
750
Molarity = moles of solute/volume of solution 0.500 M KOH = moles KOH/125 ml 62.5 millimoles, or to answer the question precisely, 0.0625 moles KOH
928 lead 750 zinc 1,500 copper 3,600 aluminum 32,000 iron 27,000 clay 28,000 salt 1,000,000 stone, sand, and gravel
750 cc of water
750 Milliliters is in one fifth of a bottle of vodka.
There are 750 milliliters in .75 liters.